Improved tuck-creaser and guide for sewing-machines



G. F. CLEMONS. Sewing-Machine Guide.

No. 90,340. Patented May25, 1869.

Wi??? eS ses ;v

UNITED STATES PATENT OFFICE,

GrIJORGrEF.A CLEMO'S, OF SPRINGFIELD, MASSACHUSETTS.

lMPROVED TUCK-CREASER AND GUIDE FOR-SE'WING-M'ACHINES.

Specification forming part of Letters Patent No. 90,340, datcdMay 2 5,i869," A

To all whom 'it may concern:

Beit known that I, GEORGE F. CLEMoNs, of Springfield, in the county ofHampden, in the State of Massachusetts', have invented a new and usefulCombined Tuck-Marker and Cloth-Guide for Sewing-Machines; and l doherebydeclare that the following is a' full and exact description thereof,reference being had to the accompanying drawings, and 4tothe letters ofreference marked thereon, making part of this specification. v L

Figure l is a plan view of the device.' `Fig. 2 is a side elevationthereof.

The nature of my invention consists, chieiiy,

in modifying the construction of my formerlypatented cloth-guide and inadaptingto it adlace, so as to be used for marking tucks of variouswidths, and also making it removable, so as to use the device forcloth-guiding; and, second, the employment, in connection with the saidcreasing-blade, of a notched non-vibratin g adjustable pressure-plate,which crimps and presses the cloth over the blade, and thereby marks orcreases aline on the cloth for the tuck. This creasing-plate is also theclothfguiding plate, and-a novel feature of my use of it is that itsconstant pressure on the cloth at the creasing-blade anditstendvency-thereby to force or deflect the advancing cloth toostrongly inward and `Itoward the gage-faceof the device are counteractedby adjusting the pressureplate so as to simultaneously bear and pressupon the cloth at or'near its inner edge, and thus produce an oppositeand outwarddeflection of the cloth, so thatitis made to run straightthrough the sewing-machine.

Referring to the drawings for a description of the construction andoperation of my said invention,the device is constructed upon abuseplateconsisting of the blade parta and the shank l, the latter havinglongitudinal slots c c c made i'n it for adjusting and securingthedevice tothe sewing-machine bed-plate, asis commonly-done 1n clothguides or gages.

dis a rigid plate lying over the base-plate a, and set parallel to it inposition, as 'shownv in `the drawings, with its wide side turned down atright angles'and soldered or securelyfixed at its edge to the base-platea, at right angles to. it, Hush with the line of the junction oftheplate a. and shank b, the part thus turned down and secured forming agage-plate, e, for the device.

Underneath the plate d is ,a spring-plate, bentdouble to form two nearlyequal and parallel parts or leaves, g and h, the upper one ofwhich,'g,is fastened at itsl end to the plate d,'and the lower one, h,isfastened ,-near, its bow end to' and carries a 'cloth guidingand'creasing plate, transversely curved up in a segment ofl a circle, andhaving V-.shap'eds notches cnt across its lower side` atjright `an.-lgles to it, at equal distances from each other;

widths apart of the tuck-marks. Y

The base-plate a has on its upper surface a graduated `scale ofdistances,` corresponding with the distances apart of the notches on theguide-plate t, and forming an index for setting the knife-edgetomarkgany required width of tuck.

j isa thumb set-screw working verticallyin the outer end of the plate d,and bearing at its. lower end on the upper plate.

lo is a similar thumb-screw working iu apro-4 jectin g' piece, f, itsllower end on the outer end of the lower leaf, h, ofthe spring-plate.

l is a longitudinal slot ont in the baseplate a. Y

*inis a thin piece of spring-plate, having-one" end turned up at rightangles and formed into a vertical knife-edge, n, for creasing a line inthe cloth. The plate m is attached to the plate a byaslidiu'g andpivoted rivet,p,which passes through-m and the .slot l. lts narrower endisl bent to form a downward-bearing spring, which Vpresses on the platea and keeps the plate lm, in position longitudinally on the plate d.Aprojection, o, is punched up on the lower side ofthe spring, and itts'into the slot land as q r, of tuck-marking.

'The gage-plate e is cut and turned up horizontally, forming theprojection f, in which the i screw 7c works, and leaving an open spacein Asoals'toV form scale to 'measure the desired"-5 leaf, g, of thespringf-V of the plate d, and bearing at keeps the knife-edge n parallelwith-the line,

the clot-h advances in sewing the gage-face for the spring h andguide-plate .i izo-Work in.

uid-in and creasing late t' in` Figs. land 2, g e s,

shall bear suitably on the sprin gs g and h toprol duce suchdistribution of sprin' g-pressu re upon the guide-plate 'ias that itwill press more upon the cloth outside than inside the line of seambeing sewed, the principle of the guiding action being that when thereis more pressure of the guide-plate on the side the lineof seam thecloth willbe deflected toward the gage-face, pressure inside thanoutside the seam the clothwill be guidedaway .from the gage-face. In-vcreasing the pressure of the screw j upon the lplate g increasesthepres'sure at the outer part oi' theguide-plate,.and increasing thepressure of the screw k upon the spring h increases the pressure at the'inner partof the guide-plate z', so that by turning. the screwsjand 'lcsuita blythe'desiredguiding actionlis given to the guide-plate forguiding the clothinx-.sewing reitherwide or narrow seams and for heavyor light fabrics, different widths ofs'eams' and different fabricsrequiring tion otthe plate Ifjit is desirable to construct-the describeddevicel to be'used knife-edge plate m, the slot l, and thenotches in theguide-plate i may be dispensed with.

- In using the described device as a `tuckmarker the cloth is placedbetween the plates a and fi and'over-the knife-edge n, with the edge ofthe cloth against thegage-face e, and vogn applying pressure of thescrew i"sufticient to` form a crimped or creased line on thecloth bytheknit'e-edge n and different guiding Vacit, the pressure by theguide-plate :i at the knifeedge a, being Well outside the line of seamst, v`will (on the principle of guiding action betore stated)'deflectthe cloth too strongly against the gageface e; but this too great inwardguiding action is counteracted by the means described of turning thescrewv k and giving suchV pressure of the guide-plate -z at its-innerend oponthe edge ofthe c loth as Will produce an outward guiding actionand canse the cloth to run straightthrough theseWing-machine; and thescrews j and lr make the'creasing-and guiding-action of the on Athecloth plate t' guide ythe cloth straight either in markf ing wide ornarrow tucks. The guide-plate i also serves to smooth and keep fromdoubling up or wrinkling of the cloth between its-edge Aand the line ofcreasing by means ofthe plate t' bearing on the cloth or its foldsbetween its edge and the line of'creasing.

The plate at is shown placed underneaththey ,plate a.

cloth outside. than inand when there ismore ,set forth, for formingcreases upon the cloth being sewed, whenused in com- -bination with fora cloth-guide alone, the

its engaging notch, as.

.edge plate m',

may be so adjusted as to' The knife-edge plate m may be otherwiseladapted to slide longitudinally on'the plate -a andtckeep the knifeedgen in position on the For example, the plate m may extend across theplate a and have its sides turned down so as to clasp the side edges ofthe'plate a'.

lln the described device the rigidv plate d,

connectedwith the parts e and 1),.(which form a sewing-machine gage.)and theguide-plate @',fconnected withthe rigid plated and the set-'screwsj and k by adouble sjiring, gand h, form a cloth-guide similar inprinciple. of conf struction and in .operation to my cloth-guideformerly patented, andI therefore do not herein claim those yfeatures/ofthe described device only so far as they are new'in combination ot'4parts.

I claim as new andl of myinrention l. The employment, in a tuck-markerfor sewingmachines, of an adjustable knifeedge pla-te and a notched non-vibratin g spring-press t i substantially as ure plate, adaptedtogether,

for tuck-marks means which produce.automatically, substantialiyin themanner "set forth, the described counteractin g cloth-guiding ac tion.f'

2. In a tluik-marked'l forl sewinggmachines, adapting the device tocloth and to guide it inward toward a gage-- face while the cloth' isbeing sewed by means ofc'ontinuous automatic pressing and crimping ofthe'cloth over aknife-edge plate, andl valso adaptin gthe device toproduce simultaneously an outwardcounteracting guiding ofthe cloth Vbymeans of automatic pressure upon itf'a-t another point at or near itsinner edge,'. for the twofold purpose of tuck-markin g the cloth andguiding it straight through the them to give adjustable and variablespringpressure upon the cloth at the line of creasing and ator near theinner edge oi' the cloth, for

the purposes set forth. 8. The notched adjustablel pressure-'plate i,

substantially as set forth. t

4. The adjustable knife-edge plate m', in combination with the notchedcreasing and 'guiding adjustable pressure-plate t', when, adaptedtogether for the purposes set forth. 5. The combination of theadjustable knifestationary baseplate a, and notched creasing and guidingadjustable pressure-plate c', when adapted together for the purposes setforth.

6. The adjustable knife-ed ge plate m, stationary base-plate a, notchedcreasing. and guiding plate i, adapted together for the purposes Setforth, and combined with a clothgage, when the latter is connected tothe former by means which are adapted to give the described adjustableand variable springpressure to the' creasing and guiding plate z', forthe purposes set forth. A, v

*Lilliev combined tuck-marker and .cloth adapted both to crease and toguide fthe'cloth,

form a. crease on the' vseW- ing'ma chine, aud, further, in suchdevices, adaptingv plate fm, all substantially as and for the purposesset forth.

8. The cloth-guide consisting of the 'baseplate a, slotted gage shank b,rigid plate d.,

gauge e, spring plates (l mid h, cloth guiding; plate y2', and piessuresei-srewsj and c, all sul)- stsiutially as and for the purposessetforth.

GEORGE F. GLEMONS.

Witnesses MELVILLE GLEMENS, LAURA D. GLEMONS.

